This is the Four-In-One, interchangeable, front and rear, shotgun sight system. It has a fully adjustable,two-dot rear sight, with a round LitePipe front sight. It includes four fiber optic family LitePipes for the rear sight (red, green, white and black), and two for the front (one red and one green).
For the size option, dropdown menu:
The FO2008-I fits 1/4” (6.3mm) and 9/32” (7.5mm) ribs, on Beretta, Browning Gold, and Remington guns.
The FO2008-II fits 5/16” (7.9mm) and 3/8” (9.7mm) ribs, on BPS, Benelli, Mossberg, and Winchester guns.
Watch our, Four-In-One installation, YouTube video.